EP2845770A1 - Load carrier for a motor vehicle with clamp contours - Google Patents

Abstract

The invention relates to a load carrier (10) for a motor vehicle (13), in particular a passenger car, with a slide guide base (11), in particular for mounting on a load carrier receptacle (22) of the motor vehicle (13), and with a slide carriage. Guide base (11) guided, between a rest position (R) and a use position (G) along a longitudinal axis (26) adjustable slide (12), wherein the carriage (12) in the position of use (G), in particular for carrying a load further than in the rest position (R) in front of the carriage guide base (11) protrudes, wherein the carriage (12) on the carriage guide base (11) by means of guide rails (24) is guided on which runners (39) or rollers are guided. In the load carrier (10) is provided that it at least one of the rest position (R) or the use position (G) associated clamping contour (71) on a clamping body (61) and at least one with the clamping contour (71) cooperating counter clamping contour (91, 53 ) on a counter-clamping body (90), which are arranged on the carriage guide base (11) and the carriage (12) and by a movement of the carriage (12) in the direction of a longitudinal position with respect to the longitudinal axis (26), in particular the rest position (R) or the use position (G), come into engagement with each other to clamp the carriage (12) with respect to the carriage guide base (11) in a clamping fit.

Description

The invention relates to a load carrier for a motor vehicle, in particular a passenger car, with a slide guide base, in particular for mounting on a load carrier receptacle of the motor vehicle, and with a guided on the carriage guide base, between a rest position and a use position along a longitudinal axis adjustable carriage, wherein the carriage protrudes in the position of use, in particular for carrying a load further than in the rest position in front of the carriage guide base, wherein the carriage is guided on the carriage guide base by means of guide rails on which runners or rollers are guided.

Such load carrier is for example in DE 10 2009 060 387 A1 described. In any case, in the respective positions of the runners are on the guide rails. In the use position, the runner rails are clamped to the guide rails, while in the rest position, a locking arrangement holds the carriage in its longitudinal position. In practice, problems have arisen because the slide at rest tends to vibrate when driving, in other words, rattling noises.

It is therefore the object of the present invention to provide an improved load carrier.

To solve the problem is provided in a load carrier of the type mentioned that it has at least one of the rest position or the use position associated clamping contour on a clamping body and at least one cooperating with the clamping contour counter clamping contour on a counter-clamping body on the carriage guide base and the carriage are arranged and by a movement of the carriage in the direction of a longitudinal position with respect to the longitudinal axis, in particular the rest position or the use position come into engagement with each other to clamp the carriage with respect to the carriage guide base in a clamping fit.

It is a basic idea of the present invention that the carriage in the rest position, the use position or both, with respect to the carriage guide base in a press fit, so that it does not even come to the unwanted rattling noise. It is also possible that the carriage reaches this clamping seat in intermediate positions between the rest position and the use position, i. that the corresponding clamping contours and counter clamping contours engage with each other. For example, it is possible for the carriage to have, as it were, a plurality of use positions, for example with respect to the carriage guide base, at least one first longitudinal position adjusted partially out of the rest position and one longitudinal position adjusted maximally from the rest position. If only smaller loads are to be transported, such an intermediate use position or longitudinal position may be advantageous.

The clamping contour or the Gegenklemmkontur or both can be relatively stationary, ie not yielding overall. It is also conceivable that relatively flexible plastic material is used in the clamping body or counter-clamping body or both, at least in the region of the clamping contour or Gegenklemmkontur has a certain compliance or elasticity.

An advantageous variant of the invention provides that the at least one clamping contour or the at least one counter clamping contour or both are each arranged on a spring-loaded in the direction of a clamping position or resilient clamping portion of the clamping body or the counter clamping body. The clamping portion is provided for example on a resilient tongue or a resilient projection.

The at least one clamping contour or the at least one counter clamping contour expediently comprise an inclined surface or wedge surface. It is also possible that the respective clamping contour or Gegenklemmkontur is formed by an inclined surface. It is possible that both contours are designed as inclined surfaces. But it is also possible that, for example, the clamping contour has an inclined surface, while the counter clamping contour just does not have this. Thus, it is sufficient for an inclined surface arrangement, which are provided in the clamping contour and the counter clamping contour, an inclined surface or wedge surface.

The at least one clamping contour and / or the at least one counter clamping contour is expediently preceded by a run-on slope or insertion bevel, at which the clamping contour or counter-clamping contour runs onto the clamping body or the counter-clamping body during emergence and is guided in the direction of the clamping contour or counter-clamping contour so to speak in the direction of movement. Thus, for example, the clamping contour first reaches a ramp and is then guided in the direction of the counter clamping contour.

The on-running slope expediently has a steeper slope than an inclined surface or wedge surface of the at least one clamping contour or Gegenklemmkontur. This measure facilitates the sliding. It is possible that between the ramp and the inclined surface of clamping contour or Gegenklemmkontur an angle is present or that the respective slopes continuously merge into one another.

The clamp body or the counter clamp body or both may be separate bodies from the rails. The clamping body or the counter-clamping body can be arranged, for example, fixed to the guide rail or the runner rail. The clamp body or the counter clamp body or both may e.g. screwed to the respective rail or other component holding them and / or glued and / or welded and / or clamped and / or infected.

It is also possible that the guide rail or the runner rail integrally provide a clamping contour or a counter clamping contour. In other words, it is also possible that the guide rail, for example integrally, the clamping body and the rotor rail integrally forms the counter-clamping body.

It is possible that the guide rails and / or the runner rails are directly involved in the clamping concept, i. that the corresponding clamping contours and counter clamping contours are arranged on the guide rail and the runner rail.

But it is also possible that the carriage can get away from the rail assembly based on the clamping contours and Gegenklemmkonturen into the clamping seat. Also, as it were mixed forms are possible, namely, for example, a clamping contour is provided away from the guide rails, with the a counter clamping contour on one or both of the rotor rails in the clamping seat longitudinal position engages.

It should also be noted that, of course, several clamping contours, clamping body or Gegenklemmkonturen and counter clamping body can be present. For example, it is possible for a clamping body to have a plurality of clamping contours and a counter-clamping body to have a plurality of counter-clamping contours.

Conveniently, a symmetrical arrangement is provided such that, for example, two guide rails extend parallel to the longitudinal axis and two guide rails of the carriage are guided on these guide rails. At least one clamping contour and at least one counter clamping contour are preferably present on both pairs of guide rail and runner rail. Such a configuration is suitable, for example, for the carriage not being tilted when it comes into the press fit.

An advantageous embodiment of the invention provides that the clamping body or the counter clamping body or both has a plug contour for producing a plug connection with a component of the carriage or the carriage guide base. The plug contour may include, for example, one or more plug-in projections and / or at least one plug-in receptacle.

In the plug-in position, in which the clamping body or counter-clamping body is plugged into the component of the carriage or the carriage guide base, advantageously still a clamping fit is provided, ie that the clamping body or counter-clamping body, so to speak, with the component that holds him, is jammed , This component is expediently the guide rail, the runner rail or else a fastening component of the respective rail, for example a screw, a screw head, a nut or the like. The clamping seat can be achieved for example by the fact that the respective clamping body or counter-clamping body has a certain excess.

Advantageously, the clamping body or the counter-clamping body or both are each supported on a transverse carrier element connecting the guide rails or the runner rails transversely to the direction of movement of the carriage. As a result, the counter clamping body or clamping body can absorb and support particularly large forces. It should be noted that, of course, the cross member element can also have a clamping contour or counter clamping contour. It is therefore also within the scope of the invention that the counter-clamping body or clamping body may form an integral part of the cross member element or is formed thereby.

It is advantageous if the clamping body and / or the counter-clamping body has at least one guide surface for guiding on the respective opposite runner rail or guide rail. The guide surface thus leads, for example, parallel to the longitudinal axis or direction of movement of the carriage with respect to the carriage guide base. In particular, when the clamping body or counter-clamping body consists of a plastic material, it can additionally develop a sliding function or distance function, that is, it improves the friction properties of the runner rail during movement along the guide rail.

The at least one clamping contour and the at least one counter clamping contour expediently act in the sense of a displacement of the carriage transversely to the direction of movement of the carriage between the carriage and the carriage guide base when adjusting in the position of use or the rest position or another terminal seat longitudinal position. For example, the carriage is raised slightly transversely to the longitudinal axis by the cooperating contours (clamping contour and counter clamping contour). As a result, it is possible for another section of the carriage to reach an inclined position or a wedge position with respect to the guide base, and thus the clamping fit is achieved.

In particular, it is advantageous if the clamping contour and the counter-clamping contour (it can of course be more of them) act in the sense of wedging.

The clamping body or the counter clamping body, which may be as described separate body or components of the guide rail and runner rail, expediently have separate clamping contours or Gegenklemmkonturen, which are provided for cooperation with each other separate Gegenklemmkonturen or clamping contours on the other body of clamping body or counter clamping body. Thus, for example, the clamping body two separate clamping contours, the counter-clamping body, which acts together with this, have multiple Gegenklemmkonturen. The different clamping contours and counter-clamping contours can have different functions, that is to say that, for example, a pairing of clamping contour and counterclamping contour acts in a first clamping direction, while another pairing of clamping contour and counterclamping contour works in a different direction. It is thus possible, for example, for the slide to be brought into a skew or angular position with respect to the guide base by one pair of clamping contour and counter clamping contour in a first axis and by another pair in an angled second axis, which improves the clamping fit.

When adjusting the carriage in the direction of the clamping seat longitudinal position, that is, for example, the rest position or the use position or both, pairs of clamping contour and counter clamping contour preferably engage sequentially in engagement. Thus, for example, first the first pairing may act in a first clamping direction, while the second pairing acts in a second clamping direction. It is also conceivable that the second pairing represents, so to speak, an additional security against the first pairing of clamping contour and counter clamping contour.

A variant of the invention provides, for example, that the clamping contours and / or the Gegenklemmkonturen with respect to the longitudinal axis, ie the direction of adjustment of the carriage relative to the carriage guide base, have a longitudinal distance from one another. By virtue of this measure, the abovementioned sequential engagement of the respective pairings of clamping contour and counter clamping contour can be easily realized.

An expedient variant of the invention provides that the clamping body is arranged on the one rail of runner rail and guide rail and the counter-clamping body on the other rail of runner rail and guide rail. The counter clamping body holding rail and the counter clamping body each have at least one cooperating with the clamping body counter clamping contour. In other words, for example, a counter clamping contour on the rail, the other counter clamping contour on the clamping body or the counter clamping body is arranged, which is arranged on this rail. The rail itself can therefore have a counter-clamping contour in this variant of the invention.

Preferably consists in clamping body and counter clamping body made of plastic, for example with a hardness of about 80-120 Shore D, more preferably about 100 Shore D. Practically approx. 95 Shore D are preferred. A preferred material is for example thermoplastic elastomers (TPE), in particular thermoplastic urethanes (TPU).

A particularly preferred variant of the invention, which is explained in more detail in the drawing, provides for the carriage guide base to be accommodated in a load carrier receptacle of a body of the motor vehicle. Particularly preferably, the carriage is extendable in the manner of a drawer from a rear of a motor vehicle.

However, the load carrier according to the invention can also be releasably fastened to the motor vehicle. For example, it is possible for the slide guide base to be fastened to a trailer coupling of the motor vehicle by means of a coupling device. But special, suitable for load carriers mounts, for example, plug receptacles or plug-in projections, for holding the carriage guide base on the motor vehicle, in particular its body, serve. For example, the coupling device comprises a clamping device for clamping to a coupling ball of a ball neck, a plug-in device or the like.

It is for example possible that the carriage is adjusted between the position of use and the rest position, so to speak in a loading position a greater longitudinal distance to the rear of the motor vehicle, for example, to open a tailgate of the motor vehicle exhibit. The rest position can then, so to speak, represent the normal position for carrying the load when driving the motor vehicle, the position of the carriage remote from the guide base, the position of use in the formulations of claim 1, so to speak, a loading position of the carriage.

The motor vehicle is, for example, a passenger car, in particular a motor vehicle with an internal combustion engine or an electric motor or both.

An advantageous variant of the invention provides that the carriage is locked in the clamping seat longitudinal position with respect to the carriage guide base by a locking device. The at least one clamping contour and the at least one counter clamping contour act in the sense of jamming the carriage with a direction of force towards the locking device.

Advantageously, the clamping device according to the invention is remote and / or remote from the or a locking device.

It is possible, for example, that the locking device, so to speak only loosely locks the carriage with respect to the carriage guide base and the clamping arrangement according to the invention ensures that the carriage is clamped or clamped against the locking device. Of course, it is possible that the locking device itself also has chamfers, wedge slopes or the like clamping means to cause an additional tension of the carriage relative to the carriage guide base away from the inventive clamping contours and Gegenklemmkonturen.

Figur 1

eine perspektivische Schrägansicht eines erfindungsgemäßen Lastenträgers,

Figur 2

ein Detail des Lastenträgers gemäß Figur 1, etwa entsprechend einem Ausschnitt D in Figur 1,

Figur 3

das Detail gemäß Figur 2, jedoch zusätzlich mit einer Läuferschiene,

Figur 4

eine Seitenansicht aus einer Blickrichtung B des Details gemäß Figur 4,

Figur 5

die Seitenansicht gemäß Figur 4, jedoch entsprechend Figur 3 mit zusätzlich der Läuferschiene,

Figur 6

einen Klemmkörper einer Klemmanordnung des Lastenträgers in perspektivischer Schrägansicht, und

Figur 7

eine perspektivische Schrägansicht einer Variante des Klemmkörpers gemäß Figur 6.

Hereinafter, an embodiment of the invention will be explained with reference to the drawing.

FIG. 1

an oblique perspective view of a load carrier according to the invention,

FIG. 2

a detail of the load carrier according to FIG. 1 , approximately corresponding to a section D in FIG. 1 .

FIG. 3

the detail according to FIG. 2 but additionally with a runner rail,

FIG. 4

a side view from a viewing direction B of the details according to FIG. 4 .

FIG. 5

the side view according to FIG. 4 , however, accordingly FIG. 3 with additionally the runner rail,

FIG. 6

a clamping body of a clamping arrangement of the load carrier in a perspective oblique view, and

FIG. 7

a perspective oblique view of a variant of the clamp body according to FIG. 6 ,

A load carrier 10 has a carriage 12 guided on a carriage guide base 11. The load carrier 10 is attached to a motor vehicle 13. In the present case, the attachment of the carriage guide base 11 is made such that the load carrier 10 forms an integral part of the motor vehicle 13, as it were. Nevertheless, the load carrier can also be removed from the motor vehicle.

The integration of the load carrier 10 in the motor vehicle 13 goes so far that a bumper portion 14 on the carriage 12 in a rest position R of the carriage 12 is aligned with a bumper, not shown in the drawing of the motor vehicle 13, quasi an integral part of the bumper, at least in optical terms forms.

At the bumper part 14, a license plate carrier 15 is also provided, on which a license plate of the motor vehicle 13 can be arranged. The motor vehicle 13 is, for example, a passenger car with internal combustion engine, electric motor or even a hybrid vehicle. It does not matter in detail.

The in FIG. 1 in the use position G adjusted slide 12 allows the application of loads, such as bicycles, luggage or the like. In this position of use G lamps 16 are swung out, so that they complement or replace the lights of the motor vehicle 13, not shown. The lights 16 can from the in FIG. 1 shown utility position are adjusted in a non-use position by means of light pivot bearings 17, where they are then closer to a carriage frame 38 of the carriage 12.

On the carriage 12, in particular its carriage frame 38, load bearing parts 18 are attached, for example, gutters for setting up bicycles. Of course, other types of load-bearing parts may also be provided, for example containers for objects to be transported or the like. The load-bearing parts 18 are in accordance with the pivoted-out position FIG. 1 in an interior of the carriage frame 38 into pivotable so that they do not interfere with the adjustment of the carriage 12 between the use position G and the rest position R.

A load arranged on the carriage 12 can also be supported by a support 20, which in the position of use according to FIG FIG. 1 upwardly in front of the carriage 12, in particular the carriage frame 38 projects. For example, the support 20 is attached to a cross member 19 of the carriage 12, for example, plugged or movably mounted.

On the motor vehicle 13, a load carrier receptacle 22 is provided, in which the carriage 12 is adjusted in the rest position R in, so that the bumper part 14 is aligned with the rest of the bumper of the motor vehicle 13. At the bottom or support area 21 of Load carrier receptacle 22, the carriage guide base 11 is attached.

The carriage guide base 11 has a guide frame 23 which has two to a longitudinal axis 26 extending guide rails 24 which are interconnected by a cross member 25. The cross member 25 so to speak forms a base leg of the guide frame 23, the guide rails 24 side legs thereof.

The cross member 25 has a base wall 27 oriented vertically in the assembled state, projecting from the side legs 28 in the direction of the guide rails 24. The guide rails 24 are arranged between the side legs 28 and are supported on the front wall advantageously on the base wall 27 from. The guide rails 24 and the cross member 25 are, for example screwed together, riveted or welded.

The profile of the guide rails 24 looks like this: from a base wall 29 is from below a support leg 30 from which serves as a mounting bracket, so to speak. In any case, the support leg 30 is connected to the load carrier receptacle 22.

The support leg 30 is opposite a running profile 31 of the guide rail 24, run on the runners 39 of a carriage frame 38 of the carriage 12 along and are guided.

The running profile 31 is in cross-section U-shaped or C-shaped and has an upper side leg 32, the runner rail 39 facing the outside represents a running surface 43, and a protruding leg 33, which is opposite to the base wall 29 at a distance. Thus, therefore, a receptacle 44 is defined between the leg 32 and the base wall 29.

The guide rails 24 are supported by means of supports 34 on the support region 21 or bottom of the load carrier receptacle 22. The supports 34 are, for example, conical or columnar.

For example, the guide rails 24 are screwed by means of screws 35 with the supports 34. A screw portion of the screws 35 penetrates, for example, the support leg 30 and is secured by the bracket 34 opposite side by means of a nut 36.

The rotor rails 39 can be moved on the guide rails 24 parallel to the longitudinal axis 26. Thus, therefore, the rotor rails 39 are guided on the guide rails 24 with respect to the longitudinal axis 26 or an axis parallel thereto.

Towards the position of use G, the carriage 12 is loaded by an ejection spring 37. The ejection spring 37 is attached, for example, to the cross member 25 and protrudes in the direction of the carriage 12 or the carriage frame 38. When adjusting the carriage 12 in the direction of the rest position R, the ejection spring 37 is tensioned and presses the carriage 12 in the direction of the use position G.

The profile of the rotor rails 39 has a base leg 40, protrude from the U-shaped side legs 41. At the free, remote from the base leg 40 end portions of the side legs 41 are U-shaped reinforcing profiles 42. The runners 39 are thus placed from above on the guide rails 24, which is located between the side legs 41 inside the base leg 40 of the tread 43 opposite and glides along it.

These details are already in themselves DE 10 2009 060 387 A1 explained. There is also an explanation that 39 spacer bodies are preferably provided between the guide rails 24 and the rotor rails 39, for example, a spacer body 45 which protrudes upward in front of the tread 43 and immersed in the rest position R in a recess 46 on the inside of the base leg 40 of the runner rail 39, that is inactive. This has the advantage that the spacer body 45 is active only in the adjustment between the use position G and the rest position R and establishes a distance between the guide rails 24 and the rotor rails 39, so that they slide optimally along each other. However, the spacer body 45 is not effective in the rest position R.

In the use position G, the carriage 12 is clamped by clamping devices 50. The clamping devices 50 can be actuated, for example, by means of pivoting levers 51.

For the rest position R clamping devices 50 are not available. There, the carriage 12 is only locked.

• An den beiden Führungsschienen 24 ist jeweils endseitig in Bezug auf die Bewegungsrichtung 47, also der Ruhestellung R zugeordnet, ein Klemmkörper 61 einer Klemmeneinrichtung 60 angeordnet, der mit einem Gegenklemmkörper 90 an der jeweils zugeordneten Läuferschiene 39 zusammenwirkt derart, dass der Schlitten 12 in der Ruhestellung R in einen Klemmsitz bezüglich der Schlitten-Führungsbasis 11 gelangt und somit nicht oder jedenfalls in einem deutlich geringeren Umfang zu Vibrationen beim Fahrbetrieb des Kraftfahrzeugs 13 neigt.

A certain tension experiences the carriage 12 in the rest position R by the ejection spring 37, which biases against the direction of movement 47, which is oriented in the direction of rest R, the carriage 12 toward a locking device 48 in a direction of movement 49. However, since the locking device 48 is equipped with a bolt, a latch bolt or the like and the spacers 45 are inactive in the rest position R, the guide rails 24 and the runner rail 39 are in the rest position R to each other with a certain game to each other, which May cause unwanted wear and unpleasant rattling noises when driving the motor vehicle 13. Here is the following, inventive measure remedy:

• On the two guide rails 24, a terminal body 61 of a clamping device 60 is arranged at each end with respect to the direction of movement 47, ie the rest position R, which cooperates with a counter-clamping body 90 on the respectively associated runner rail 39 such that the carriage 12 in the rest position R comes into a clamping fit with respect to the carriage guide base 11 and thus not or at least to a much lesser extent tends to vibrations during driving of the motor vehicle 13.

The clamping body 61 has a base body 62, which is designed for mounting on the guide frame 23. The main body 62 has a front-side plug-in receptacle 63, which can be plugged onto a respective nut 36 in a form-fitting manner. The plug-in receptacle 63 is advantageously designed as an anti-twist device for the nut 36, that is to say when the screw 35 is screwed into the nut 36, an anti-twist device for the nut 36 is thus automatically provided. That is not absolutely necessary, but only beneficial. In general, one will first of all mount the guide rails 24 or the guide frame 23 on the support region 21 of the motor vehicle 13, so that the nut 36 is already available as a plug-in projection for the plug-in receptacle 63.

An inner contour of the plug-in receptacle 63 is equipped to form a positive fit with an outer contour of the nut 36 or another component provided for fastening the load carrier 10 to the motor vehicle 13.

A further support undergoes the clamping body 61 back, for example, by its rear end face 64 is supported on the cross member 25, in particular its base wall 27.

Also there may conveniently be provided a connector with the carriage guide base 11. For example, a plug projection 65 protrudes rearwards in front of the end face 64 and engages in a plug receptacle on the cross member 25, for example the base wall 27, a ( FIG. 5 ).

An alternative attachment concept, which can also be realized in combination with the previous attachment options, is the in FIG. 7 illustrated variant of the clamping body 61, namely a clamping body 161, shown.

The clamping bodies 61, 161 are almost identical, but with an upward, e.g. as a kind of fin, a male projection 165 protrudes in front of the clamping body 161, which can engage in the receptacle 44 of the barrel profile 31 from the inside. The receptacle 44 thus forms a plug-in receptacle. By this plug-in engagement an optimal lateral support of the clamping body 161 is realized transversely to the longitudinal axis 26. The plug-in projection 165 is preferably provided with inclined surfaces and / or flexurally flexible in such a way that it can be, so to speak, threaded or latched into the relatively stiff receptacle 44.

The two clamp bodies 61 and 161 will be described in full below, the reference numerals being different from each other by 100 for the sake of clarity.

From the main body 62 is upwardly from a clamping portion 66, 166, which is connected to the base 62. The clamping section 66, 166 comprises a resilient projection 67, 167 oriented toward the front, in the direction of the end face of the respective runner rail 39. The projection 67, 167 is integrally connected to the base body 62 by a connecting section 68. Between the projection 67 and an upper side of the main body 62 is a distance 69, for example a kind of slit, provided such that the free portion of the projection 67 can be deflected toward the base body 62 and springs away from it. Thus, therefore, the projection 67 has a tendency to feather away from the base body 62, in the drawing or in the installed state of the load carrier 10 upward.

The projection 67, 167 projects forward in front of the connecting section 68 and in front of the main body 62.

At a free end face of the projection 67, 167, a run-on slope 70, 170 is provided, on which the counter-clamping body 90 first runs in the adjustment of the carriage 12 in the direction of the rest position R before it is in contact with a downstream in the direction of movement 47 clamping contour 71, 171 arrived. As a result, in addition, the projection 67, 167 is deflected transversely to the direction of movement 47, that is to say towards the main body 62, in a spring-like manner, which can be seen in FIGS FIGS. 4 and 5 can recognize.

Another jamming takes place by the runner rail 39 itself, which arrives at a second, adjacent to the clamping contour 71 clamping contour 72, 172 during the movement of the carriage 12 in the direction of the rest position R.

The clamping contour 72, 172 is arranged at a longitudinal distance with respect to the longitudinal axis 26 to the clamping contour 71, 171 such that upon an adjustment of the carriage 12 in the direction of the rest position R first the counter clamping body 90 in engagement with the clamping contour 71, 171 and then the runner rail 39 with the clamping contour 72, 172 engages.

The clamping contour 72, 172 is preferably also resilient, which is for example in FIG. 5 can recognize. The clamping contour 72, 172 is arranged on a projection 73, 173 projecting laterally in front of the main body 62.

The projection 73, 173 projects laterally from a connecting body 74, which is connected to the main body 62, for example at its rear section 75. A rear side of the connecting body 74 is in alignment with the end face 64, thus also resting on the base wall 27 of the crossbeam 25 from.

For optimal adaptation, ie a positive fit on the cross member 25, provides a recess 76 on the underside of the base body 62 and the connecting body 74, which is L-shaped. The recess 76 is provided for the positive engagement of the side leg 28 of the cross member 25 ( FIG. 2 ).

The counter clamping body 90 has a counter clamping contour 91, which is provided on a base body 92. The main body 92 has, for example, a lateral guide section 93, which is guided on the underside of the running profile 31.

The base body 92 is provided with a bore 94 into which a screw 95 penetrating the runner rail 39 at an opening 57 can be screwed. Thus, therefore, the counter clamping body 90 is bolted to the runner rail 39. He could also be stuck and / or infected.

On the side facing away from the base leg 40 of the runner rail 39 is the counter-clamping contour 91. The counter-clamping contour 91, like the clamping contours 71, 72 (171, 172), is configured as an inclined surface. The counter-clamping contour 91 can thus initially accumulate on the run-on slope 70, 170 and then reaches the clamping contour 71, 171. The clamping contour 71, 171 forms, as it were, a clamping bevel.

The inclinations of the clamping contours 71, 171 and the counter clamping contour 91 are expediently approximately the same. The run-on slope 70, 170, however, is much steeper, so that the clamping contours 71, 171 can run with relatively little resistance to the clamping contours 71, 171 and accumulate on a ramp, so to speak. In this case, the projection 67, 167 is deflected transversely to the longitudinal axis 26, as well as transversely to the direction of movement 47, so that the carriage 12 experiences a force or clamping force 52 transversely to the longitudinal axis 26.

The counter-clamping body 90 preferably also has a further counter-clamping contour 96, which, for example, cooperates with a clamping body assigned to the use position G, but which does not actually exist in the exemplary embodiment. Such a clamping body could for example be provided on the guide rails 24 in the region of the longitudinal position in the clamping devices 50 ( FIG. 1 ).

The clamping device 60 is arranged symmetrically on both pairs of guide rail 24 and rotor rail 39. In the drawing, only the left in the direction of travel of the motor vehicle 13 clamping device 60 is shown, wherein also on the pair of rails in the direction of travel right such a clamping devices 60 is advantageous (dashed lines in FIG. 1 shown).

In addition to the counter-clamping contour 91, the carriage 12 has further counter-clamping contours 53 which, however, are not formed directly by the counter-clamping body 90, but are provided directly by the runner rail 39. A respective counter-clamping contour 53 is located, for example, on a free end face 54 of a reinforcing profile 42. For example, a free end face of a lower leg 55 of the reinforcing profile 42 runs on the clamping contour 72, 172.

The clamping contour 72, 172 has a wedge slope.

Preferably, the projection 73, 173 is resilient so that it can be deflected by the counter clamping contour 53 ( FIG. 5 )

The projection 73, 173 acts on the profile of the runner rail 39 directly in the direction of the clamping seat.

In FIG. 1 the clamping forces 52 are shown, which exert the clamping devices 60 on the carriage 12. It is preferred that the clamp means 60 lift the carriage 12, so to speak, from the guide rails 24 where the clamp means 60 are operative. This also counteracts rattling or other unpleasant noises.

Furthermore, the ejection spring 37 acts in the direction of movement 49, thus pushing the carriage 12 in the direction of the locking device 48, so that the carriage 12 in the direction of travel of the motor vehicle 13 so to speak, slightly raised from the guide frame 23 and is supported in the rear direction of the locking device 48.

The spring force of the ejection spring 37 and clamping forces 52 act in the sense of clamping or jamming of the carriage 12 on the carriage guide base eleventh

Claims (15)

Load carrier for a motor vehicle (13), in particular a passenger car, with a slide guide base (11), in particular for mounting on a load carrier receptacle (22) of the motor vehicle (13), and with a guided on the slide guide base (11) between a rest position (R) and a use position (G) along a longitudinal axis (26) adjustable slide (12), wherein the carriage (12) in the use position (G) in particular for carrying a load further than in the rest position (R) before the Carriage guide base (11) protrudes, wherein the carriage (12) on the carriage guide base (11) by means of guide rails (24) is guided on which runners (39) or rollers are guided, characterized in that the load carrier (10 ) at least one of the rest position (R) or the use position (G) associated clamping contour (71, 171) on a clamping body (61, 161) and at least one with the clamping contour (71, 171) cooperating Gegenklemmk on a counter-clamping body (90), which are arranged on the carriage guide base (11) and the carriage (12) and which by a movement of the carriage (12) in the direction of a longitudinal position with respect to the longitudinal axis (26 ), in particular the rest position (R) or the use position (G), come into engagement with each other to jam the carriage (12) with respect to the carriage guide base (11) in a press fit. Load carrier according to claim 1, characterized in that the at least one clamping contour (71, 171) and / or the at least one counter clamping contour (91, 53) on a spring-loaded in a clamping direction or resilient clamping portion (66, 166), in particular a resilient tongue or a resilient projection (67, 167), the clamping body (61, 161) or the counter-clamping body (90) is arranged. Load carrier according to claim 1 or 2, characterized in that the at least one clamping contour (71; 171) or the at least one counter-clamping contour (91; 53) comprise or are formed by an inclined surface or wedge surface. Load carrier according to one of the preceding claims, characterized in that the at least one clamping contour (71, 171) and / or the at least one counter clamping contour (91, 53) is preceded by a ramp (70, 170) on which the counter clamping contour (91, 53 ) or the clamping contour (71, 171) when run on the clamping body (61, 161) or the counter clamping body (90) runs and in the direction of the clamping contour (71, 171) or the counter clamping contour (91, 53) is guided. Load carrier according to claim 4, characterized in that the run-on slope (70; 170) has a steeper inclination than an oblique surface or wedge surface of the at least one clamping contour (71; 171) or counter-clamping contour (91; 53). Load carrier according to one of the preceding claims, characterized in that the clamping body (61; 161) and / or the counter-clamping body (90) is fixedly arranged on one of the rails of runner rail (39) or guide rail (24) or is formed by the rail and / or that the clamping contour (71, 171) or the counter-clamping contour (91, 53) or both are formed by the runner rail (39) or the guide rail (24). Load carrier according to one of the preceding claims, characterized in that the clamping body (61; 161) and / or the counter clamping body (90) has a plug contour for producing a plug connection, in particular in a press fit, with a component of the carriage (12) or carriage carriage. Guide base (11), in particular the guide rail (24) or the runner rail (39) or a fastening component of the respective rail has. Load carrier according to one of the preceding claims, characterized in that the clamping body (61; 161) or the counter-clamping body (90) on a transverse carrier element (25) connecting the guide rails (24) or the rotor rails (39) transversely to the direction of movement of the carriage (12) is supported. Load carrier according to one of the preceding claims, characterized in that the clamping body (61, 161) and / or the counter-clamping body (90) has at least one guide surface for guiding on the respectively opposite runner rail (39) or guide rail (24). Load carrier according to one of the preceding claims, characterized in that the at least one clamping contour (71; 171) and the at least one counter clamping contour (91; 53) in the clamping in the sense of a displacement of the carriage (12) transversely to a direction of movement of the carriage (12 ) when adjusting in the use position (G) or the rest position (R) between the carriage (12) and the carriage guide base (11) act and / or the at least one clamping contour (71, 171) and the at least one counter clamping contour (91; 53) in the clamping position a located next to the clamping contour and counter clamping contour, in particular immediately adjacent, region of the runner rail (39) of the guide rail (24) lifts. Load carrier according to one of the preceding claims, characterized in that the clamping body (61; 161) or the counter clamping body (90) at least two mutually separate clamping contours (71, 72, 171, 172) or Gegenklemmkonturen (91, 53), which cooperate with mutually separate Gegenklemmkonturen (91; 53) or clamping contours on the other body of clamping body (61; 161) or counter clamping body (90) are provided. Load carrier according to claim 11, characterized in that during the adjustment of the carriage (12) in the direction of clamping seat longitudinal position, in particular the use position (G) or the rest position (R), the pairings of clamping contour (71, 72, 171, 172) and The clamping contours (71, 72, 171, 172) and / or the counter-clamping contours (91, 53) have a longitudinal spacing relative to one another with respect to the longitudinal axis (26). Load carrier according to one of the preceding claims, characterized in that the clamping body (61; 161) is arranged on one rail of runner rail (39) and guide rail (24) and the counter clamping body (90) on the other rail of runner rail (39) and Guide rail (24) is arranged, wherein the counter clamping body (90) holding rail and the counter clamping body (90) each have at least one with the clamping body (61; 161) cooperating counter clamping contour (91; Load carrier according to one of the preceding claims, characterized in that the clamping body (61; 161) and / or the counter-clamping body (90) consists of plastic, in particular with a hardness of about 80-120 Shore D, and / or the guide rails (24) and or the rotor rails (39) are made of metal. Load carrier according to one of the preceding claims, characterized in that it comprises a coupling device for releasably coupling to a holder, in particular a trailer coupling of the motor vehicle or the carriage in the manner of a drawer from the rear of the motor vehicle (13) is extendable.

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